<!--html5标识-->
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/html">
<head>
    <!--页面字符集-->
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h2>标题h2</h2>
水平线hr&reg;&copy;
<hr>
<img src="https://ts1.cn.mm.bing.net/th?id=OIP-C.TqL74pDlvGPwKR_wx8D9QAHaG1&w=188&h=170&c=8&rs=1&qlt=90&o=6&dpr=1.44&pid=3.1&rm=2">
<audio src="" controls></audio>
<video src="" controls></video>
<a href="https://www.w3school.com.cn/html/html_symbols.asp" target="_blank">w3school</a>
<div>div1</div>
<div>div2</div>
<span>span1</span>
<span>span2</span>
<br>
<input>
</body>
</html>